Just done some digging, the Dragon's payload to LEO is about 13,000 pounds, compared to the X37B's max launch weight of about 11,000 pounds; payload volume is 10 cubic metres against 0.75 cubic metres.

That makes the x37 a baby in comparison to the Dragon - that might be the answer to my question :-(Bob Smith
Member of Seti PIPPS (Pluto is a Planet Protest Society)
Somewhere in the (un)known Universe?

There are some space mysteries. According to the NYTimes the National Reconnaissance Office has turned over to NASA two space telescopes, similar to Hubble, but with a shorter focal length, used probably to watch possible enemy countries and not the stars. I believe they were carried in orbit by some military Shuttle mission and then brought back. Now NASA intends to deploy one to search for dark energy, after putting it again in orbit in 2020.
Tullio